We did a trail run as a team. It is the first time I have ever done a trail run. We started at the base of Mt. Ohyama which is at an elevation of a little over sea level, and we ran to the top of Mt. Ohyama which is at an elevation of about 1300m. The temperature at the bottom was about 15C and the temperature at the top was 2.5C. It was cold and windy on top. It is about 3 miles up and very steep. and the course we took down was about 4 miles. Going up was nice, but because of my poor balance, coming down was a little scary. Running up and down mountains is a lot more difficult than I realized, but I liked it.